Carib Sea Aragamax Sand Substrate</br></br><div style="text-align:left"><b>[Product Information]</b><br><ul><li>re-create natural reef environments</li><li>100% aragonite supports healthy ph</li><li>great for refugiums ， deep sand beds and low flow tanks</li><li>made in the USA</li></ul></div></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br></br><img src='http://ecx.images-amazon.com/images/I/5139Oa2OaeL.jpg' noproxy></br>